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All results from a given calculation for C2H6 (Ethane)

using model chemistry: MP4=FULL/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3D 1A1g
Energy calculated at MP4=FULL/6-311+G(3df,2p)
 hartrees
Energy at 0K-79.711667
Energy at 298.15K-79.717583
HF Energy-79.257679
Nuclear repulsion energy42.289870
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at MP4=FULL/6-311+G(3df,2p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1g 3051 3051        
2 A1g 1433 1433        
3 A1g 1021 1021        
4 A1u 312 312        
5 A2u 3048 3048        
6 A2u 1416 1416        
7 Eg 3112 3112        
7 Eg 3112 3112        
8 Eg 1519 1519        
8 Eg 1519 1519        
9 Eg 1225 1225        
9 Eg 1224 1224        
10 Eu 3135 3135        
10 Eu 3135 3135        
11 Eu 1520 1520        
11 Eu 1520 1520        
12 Eu 824 824        
12 Eu 824 824        

Unscaled Zero Point Vibrational Energy (zpe) 16474.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16474.5 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at MP4=FULL/6-311+G(3df,2p)
ABC
2.69731 0.66904 0.66904

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/6-311+G(3df,2p)

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.763
C2 0.000 0.000 -0.763
H3 0.000 1.017 1.158
H4 -0.880 -0.508 1.158
H5 0.880 -0.508 1.158
H6 0.000 -1.017 -1.158
H7 -0.880 0.508 -1.158
H8 0.880 0.508 -1.158

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.52541.09081.09081.09082.17332.17332.1733
C21.52542.17332.17332.17331.09081.09081.0908
H31.09082.17331.76091.76093.08212.52952.5295
H41.09082.17331.76091.76092.52952.52953.0821
H51.09082.17331.76091.76092.52953.08212.5295
H62.17331.09083.08212.52952.52951.76091.7609
H72.17331.09082.52952.52953.08211.76091.7609
H82.17331.09082.52953.08212.52951.76091.7609

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.253 C1 C2 H7 111.253
C1 C2 H8 111.253 C2 C1 H3 111.253
C2 C1 H4 111.253 C2 C1 H5 111.253
H3 C1 H4 107.633 H3 C1 H5 107.633
H4 C1 H5 107.633 H6 C2 H7 107.633
H6 C2 H8 107.633 H7 C2 H8 107.633
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability